Subj : MESO: Mesoscale Discussion 2057
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Thu Dec 22 2022 01:02:12

ACUS11 KWNS 220102
SWOMCD
SPC MCD 220101=20
NEZ000-SDZ000-COZ000-WYZ000-220500-

Mesoscale Discussion 2057
NWS Storm Prediction Center Norman OK
0701 PM CST Wed Dec 21 2022

Areas affected...Southern SD...parts of NE... far southeast WY...and
northeast CO

Concerning...Blizzard=20

Valid 220101Z - 220500Z

SUMMARY...Reduced visibilities in blowing snow and localized
ground-blizzard conditions are possible across parts of the northern
and central Plains into the overnight hours.

DISCUSSION...Latest surface observations show 25-35 mph sustained
northerly surface winds (with gusts upwards of 45 mph) across parts
of the northern and central Plains -- behind a strong
southward-advancing cold front. These strong/gusty surface winds,
coupled with very cold surface temperatures (-05 to -15 F), are
yielding locally favorable conditions for reduced visibilities in
blowing snow -- despite only light to moderate ongoing snow over the
area. Visibilities of 1/2 to 1/4 mile are possible into the
overnight hours -- especially over areas that continue to experience
at least light to moderate snow showers amid the strong/gusty winds.

...Weinman.. 12/22/2022

....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj=
g!-Mprw66YBd29pVe-1524Xc464oleVr3icMguqBosK0LTZtjUwGfYE-QVyyL1-3BKZD24qL9C4=
iOzSRPruPWIyDxsn58$  for graphic product...

ATTN...WFO...FSD...OAX...ABR...GID...LBF...UNR...GLD...BOU...
CYS...

LAT...LON   42669734 42139729 41779768 41349843 40849956 40460103
            40160196 40140323 40270383 40650449 41080493 41530487
            42170451 42750357 43170228 43470048 43519860 43259770
            42669734=20


=3D =3D =3D
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